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Beer Moving Tractor-Beam

A Beer Moving Tractor-Beam is a theoretical device which would have the ability to transport beer with the use of energy rays. Similar technology has already become a reality as evidenced by researchers from the Australian National University who in 2010 announced that they built a device that can move small particles a meter and a half using only the power of light. Physicists have been able to manipulate tiny particles over miniscule distances by using lasers for years. The current devices work by shining a hollow laser beam around tiny glass particles. The air surrounding the particle heats up, while the dark center of the beam stays cool. When the particle starts to drift out of the middle and into the bright laser beam, the force of heated air molecules bouncing around and hitting the particle's surface is enough to nudge it back to the center. Many people see the development of such a device specifically for the purpose of moving beer as being a novelty item while others envision the safety and practicality of avoiding the risks involved with potentially intoxicated people mobilizing in various ways to acquire more beer. Because the currently understood technology for using a tractor-beam requires heated gas to push particles around there is concern that the beer would be warmed and so it follows that additional research will have to be done to compensate for this unsavory side effect.

http://www.foxnews.com/scitech/2010/09/08/tractor-beams-real/